<?php

class AlunoController extends Controller
{

    /**
     * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
     * using two-column layout. See 'protected/views/layouts/column2.php'.
     */
    public $layout = '//layouts/column2';

    /**
     * @return array action filters
     */
    public function filters()
    {
        return array(
            'accessControl', // perform access control for CRUD operations
            'postOnly + delete', // we only allow deletion via POST request
        );
    }

    /**
     * Displays a particular model.
     * @param integer $id the ID of the model to be displayed
     */
    public function actionView($id)
    {
        $this->render('view', array(
            'model' => $this->loadModel($id),
        ));
    }

    /**
     * Creates a new model.
     * If creation is successful, the browser will be redirected to the 'view' page.
     */
    public function actionCreate()
    {
        $model = new Usuario;
        $model->perfil_id = 4;
        
        // Valida o usuário por ajax
        $this->performAjaxValidation($model);

        if (isset($_POST['Usuario'])) {
            $model->attributes = $_POST['Usuario'];
            if ($model->save())
                $this->redirect(array('view', 'id' => $model->id));
        }

        $this->render('create', array(
            'model' => $model,
        ));
    }

    /**
     * Updates a particular model.
     * If update is successful, the browser will be redirected to the 'view' page.
     * @param integer $id the ID of the model to be updated
     */
    public function actionUpdate($id)
    {
        $model = $this->loadModel($id);
        $senhaAntiga = $model->senha;
        $model->senha = '';

        if (isset($_POST['UsuarioAluno'])) {
            $model->attributes = $_POST['UsuarioAluno'];
            
            if (empty($model->senha)) {
                $model->senha = $senhaAntiga;
            } else {
                $model->senha = Usuario::hashSenha($model->senha);
            }
            
            if ($model->save()) {
                $this->redirect(array('view', 'id' => $model->id));
            }
        }

        $this->render('update', array(
            'model' => $model,
        ));
    }

    /**
     * Deletes a particular model.
     * If deletion is successful, the browser will be redirected to the 'admin' page.
     * @param integer $id the ID of the model to be deleted
     */
    public function actionDelete($id)
    {
        $this->loadModel($id)->delete();

        // if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
        if (!isset($_GET['ajax']))
            $this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
    }

    /**
     * Lists all models.
     */
    public function actionIndex()
    {
        $dataProvider = new CActiveDataProvider('UsuarioAluno');
        $this->render('index', array(
            'dataProvider' => $dataProvider,
        ));
    }

    /**
     * Manages all models.
     */
    public function actionAdmin()
    {
        $model = new UsuarioAluno('search');
        $model->unsetAttributes();  // clear any default values
        if (isset($_GET['UsuarioAluno']))
            $model->attributes = $_GET['UsuarioAluno'];

        $this->render('admin', array(
            'model' => $model,
        ));
    }

    /**
     * Returns the data model based on the primary key given in the GET variable.
     * If the data model is not found, an HTTP exception will be raised.
     * @param integer $id the ID of the model to be loaded
     * @return UsuarioAluno the loaded model
     * @throws CHttpException
     */
    public function loadModel($id)
    {
        $model = UsuarioAluno::model()->findByPk($id);
        if ($model === null)
            throw new CHttpException(404, 'The requested page does not exist.');
        return $model;
    }

    /**
     * Performs the AJAX validation.
     * @param UsuarioAluno $model the model to be validated
     */
    protected function performAjaxValidation($model)
    {
        if (isset($_POST['ajax']) && $_POST['ajax'] === 'usuario-aluno-form') {
            echo CActiveForm::validate($model);
            Yii::app()->end();
        }
    }

}
